06-5459A Norton Commando Vernier adjustable Isolastic head steady 750 850 BSA The OD is 1 1/16"

The OD is 1 1/16" the threads are 26tpi

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The OD measures 1/4" This is a complete set for the top and bottom

Comes with a detailed schematic

06-5459A Norton Commando Vernier adjustable Isolastic head steady 750 850 BSA The OD is 1 1/16"You will get the brand new head steady as pictured, the side plate is not polished but bead blasted like the rest of the bracket. This is made of Aluminum 6061 T6. Comes complete assembled and complete instruction book.